Two posts mentioning these as an attraction of the exhaust system - but why? What is the attraction of letting unburnt fuel into the exhaust so you can hear a set of mini explosions. Surely its better to use the fuel to go faster.
When I had an F type, the exhaust was engineered just to make this noise. Do people think it makes the car sound like a race car? Do they pop and bang? Never noticed it in F1.
Do you own / run a Morgan?
Surely if you do, its a redundant question........
